Lock



A. W. HICKS.

APPLICATION FLIDKNOV. l2. |919. 1,358,877. Patented Nov. 16,1920.

4 SHEETS*SHEET l.

` A. w. mcKs.

LOCK.

APPLICATION FILED NOV. I2, |919- Patellted NOV. 16, 1920.

4 SHEETS-SHEET 2.

A. W. HICKS.

LOCK. APPLICATION FILED Nov. I2. I9I9.

1,358,877, Patented Nov. 16, 1920.

4 SHEETS-SHEET 3'.

INVENTOR. A-W- Ricks.

A. W. HICKS.

LOCK.

APPLlCATION FILED NOV- 12 i919.

Patented Nov. 16, 1920.

4 SHEETS-SHEET 4.

INVENTOB.

A.WP..ck.6

UNITED STATES PATENT OFFICE.

ABSALOM W. KICKS, OF REXBURG, IDAHO.

Loox.

Application filed November 12, 1919. Serial No. 337,593.

To all 'zo/loam t may concer-a.'

Be it known that l, AnsALoM XV. Rions, a citizen of the United States,residing at ReXburg, in the county of Madison and State of idaho, haveinvented certain new and useful improvements in Locks, of which thefollowing is a specification.

his invention relates to locks and has for its oh'ect the provision ofmeans whereby a holt may be controlled through the use of a plurality ofkeys or 4push rods and intermediate elements so arranged that the reo'fthe lock by an unauthorized person will be p ventec. The invention seeksto provide a. lock which may be mounted upon the dashboard of anautomobile and control a movable part so that when the lock is set, themovable part of the automobile will be inoperative and, hence, thevehicle cannot be used by persons not possessed of the combinationaccording to which the keys or push rods must be manipulated. Theinvention is illustrated in the accompanying drawings and will behereinafter fully described, the novel features being subsequentlyparticularly pointed out in the appended claims.

in the drawingsli gure l is a perspective view of a lock enbodying mypresent invention, some parts of the supporting structure being omittedin order tl other parts may be more clearly shown;

Fig. 2' is a longitudinal vertical section taken just in front of theguiding ribs or flanges which are provided on the inner w s of the mainframe;

3 is a transverse section taken about on t e line 3-3 of Fig. 2;

Ll is a detail perspective view of the it rts shown in Fig. 3;

i Pig. is an end view of theV lock;

T1ig. 6 is a detail perspective view f the gitudinal rock shaft;

` 7 is a detail perspective view of the lol ne slide show in Fig. 7

9 is a detail perspective view of the l0 is a detail transverse section;il is a detail perspectiveview of one ush rods or keys.A

.ff/entien, l

employ a frame which may be of any suitable form and is illustrated asconsisting of walls l arranged in rectangular relation and havingstandards 2 rising from their end members. The standards 2 are connectedby upper and lower cross bars 3 and t and these bars 3 and l at one endproject beyond the adjacent standard, as shown clearly in Fig. 2.Adjacent the lower ends of the standards 2, inwardly projecting verticalribs or flanges 5 are provided on the end walls of the frame and theseribs or flanges are provided with forwardly projecting lips 6 whichconstitute stops'as will be hereinafter more particularly set forth. Itis to be understood that small knobs or lugs will serve the functions ofthese stops and I do not limit myself to lips extending the full widthof the ribs or flanges as shown in the drawings. One of these ribs orflanges 5 is provided at an intermediate point of its height with anopening .7 for a purpose whichwill hereinafter appear. The upper bar 3of the frame will preferably secured by any convenient means to thedashboard 8 of the vehicle so that the mechanism of the vlock will behidden from view by the dashboard and the only parts of the mechanismwhich will be readily accessible will be the keys or push f rods 9 whichproject throughthe dashboard and are slidably mounted in the bars 3 andel. The upper portions of these push rods or keys are angular, as shownat l0, and the openings in the bar 3 and the dashboard are of similaroutline so that turning of the bars or keys will be prevented. The lowerportions of the bars are circular in cross section,

as at il, and springs l2 are coiled around the said circular portionsbetween the bar i and stops 13 on the several rods so that the rods willbe normally held projected, as shown in the drawings. Each rod isequipped with a cap plate 14 upon which is displayed a numbercorresponding to the position of the key in the row of keys.

rlhe bolt l5 is mounted longitudinally in frame and is slidanlysupported in the i wa ls thereof. A standard 16 is provided between theends of the frame and is constructed at its upper end with an eye l?through which the bolt l5 passes'and which so serves as an abutment fora spring i8 which is coiled around the bolt between the s l eye and apin or other form of stop i9 carried by the holt near its free end.lormally the spring 18 serves to proj ect t ie bolt through one end ofthe frame and the movement of the bolt under the influence of the springis limited byicontact of the stop 19A with the side of the frame as willbe readily understood. The lock may be so arranged upon the automobileas to serve its purpose in various ways and I have deemed 1t unnecessaryto illustrate any of 1`these per-V missible arrangements inasmuchas I donot restrict myself to any one adaptation. For instance, the bolt, whenprojected, may bear upon a projection on the inlet valve of thecarburetor so that said valve will be held closed. Of course, theautomobile cannot be operated until'the valve be opened and, inV

order to open the valve, it will be necessary to release the bolt byworking the combination for which the lock is set, The bolt may,however, be so disposed that when it is projected it will holdthe-steering post in a fixed position; it may be so arrangedas to holdVthe clutch open and against movement, or

it may be so arranged as to put the starting devices in an inoperativecondition and to hold them in such condition untilthe combination hasbeen operated and the lock thereby opened. To withdraw the bolt, thekeys or push rods 9 or some of them are operatedvin a predeterminedsequence to actuate intermediate devices whereby the bolt will be causedto slide in the frame in opposition to the spring 18.

Between the abutment 17 andthe adjacent end of the main frame, the bolt15 is angular in cross section, as shown at 20, and this angular end ofthe bolt is slidably mounted in an opening of similar outline in theframe whereby rotation of the bolt is prevented.

On the under side of this angular portion of the bolt, is a rack 21which is engaged by a segment'or pinion 22 on a transverse rock shaft23.This rock shaft 23 is journaled in the front and rear walls of the frameand at an intermediate ioint of its leno'th is )ro-v vided with a crankarm or lever 24. A longitudinal'roek shaft25 isjournaled in theend'walls of the frame near the front side of the same and this rockshaft isprovided adjacent its ends'with segments or pinions 26 whichconstantly mesh withracks-27 at the ends cfa shelf'28, said racksbearing at their rear sides against the front faces of the ribs orflanges 5 and being held in vertical position by the same and by thepinions 26. Normally, the upper'ends of the racks abut the stops 6 sothat the upward movement of the racks and the shelf 28 carried by themwill be limited. The rock shaft 25 is constructed with a forwardlyprojecting arm or lever 29 and a spring 30 isattached to the-free-end ofsaid-arm and toa fixed part ofthe frame sothat it tends to hold theshaft in such a position that'the pinions 26 willrhave'moved thevracks27 to the'up- Ward limit of their movement;

The. shaft.

crank or leverarms 31 and with other longer Y lever arms 32 which arepivotally attached to the shaft in such manner that 'downward pressureexerted upon the said arms will cause the shaft to rock in its bearingsbut lateral pressure thereon will not affect the shaft, althoughswinging the levers about their pivots. The pivoted levers are normallyheld in a position radial to the shaft by springs 33 secured to theshaft and the front ends of the levers, as shown most clearly in Fig. 6.lt will also be noted that thevlevers 32 pass through slots 34 in theshaft and the ends of these slots are so disposed as to limitthe-pivotal movement of the lever under the inuence of the-springs. Thearrangement of the several levers will be determined by the combinationof numbers for. which the lock is designed and a knowledge of whichmustbe had to permit the operation of the lock. There will be either a fixedlever or a pivoted lever in the vertical plane ofeach key or push rodexcept that key or push rod which corresponds to the first number of thecombination. In the present instance, the first number of thecombination is 2- and, accordingly, there is no lever or crank arm inthev plane of the second key or push bar. It may also be noted that thetenth key or push bar, which isdesignated by Zero, is disposed outsidethe main frameand mountedjin the projecting ends .of the bars 3 and eand has for its function the setting of the lock after it has once beenopened. The crank or lever arm 35 to be engaged by this keyfor push rodis, of course, always iixedlto therock shaft 25.

rihe shelf 28 extends rearwardly between the ribs or anges 5 ofthe mainframe and is disposed below the several `levers or crank arms on therock shaft 25 so that it will not interfere with the movement of thesame, and-above the rear portion of the shelf 28 the releasing slide 36is mounted so that normally it will rest upon the shelf, as shownclearly in Fig. 3, whileit is slidably mounted in the endiwalls ofthemain frame. The slide 36 is provided with a plurality of notches oropenings 37 extending longitudinally thereof to beengaged by a springcatch 38 moun-tedon the under side of the shelf 28 and projecting at itsfree end through an opening 39 inthe shelf. This latch is soformed thattheslide 36'1nay move readily thereover whenV it is being properlykmanipulated to open the lock and will be held against reversemovement bythe engagement of the latclr in one of the notchesor openings 37; Shouldthe keys not bc operated in the proper sequence', the latch will bereleased. and the slide will then at once return to its initialposition. This result is due to the fact that when an improper key isdepressed, the lower end thereof will engage one of the lever or crankarms extending from the rock shaft 25 and will depress the said lever orcrank arm so that the shaft will be rocked and the segments 26 caused tomove the racks 2'? downwardly whereupon the shelf 28 will be lowered andthe latch 38 withdrawn from the opening v37 in which it may be engaged.immediately upon this withdrawal of the latch, the slide will bereturned to its initial position by the action of a spring 40. The saidspring 40 is coiled around a rod 41 which is slidably mounted in the endWalls ot the trame and is rigidly connected with the slide by webs 42 sothat while the rod 41 spaced from the slide it is an integral structuretherewith and the bars or webs 42 constitute stops to limit the movementof the slide by coming into Contact with the end walls or" the frame.One web 42 also constitutes one abutment for the spring 40 wnile theother abutment is provided by an eye 4B at the upper end of a post 44lined on the bottom of the ramecor some other stationary part ol thesame, the rod 41 passing r irougn the eye 43, as clearly shown in lenoted that the working end of 1 l5 normally project-s through the theframe. lnitially, the

guide and spring-supportproject through the leitena of tle frame, andthe slide and said rod shouli be ot such length that they i i besupported by the endrwalls of the in their positions and have a rangemovement corresponding to the number oi' elements in the combinationwhich controls the lock. Depending from the web 42 at the lefthand endoit the slide 36 and the bar or rod 41 is a trip 45 which is adapted toactuate an angle lever 46 which controls a spring latch, the Jfunctionof which is to hold the shelf 28 in its lowered position until the slidehas reached its initial position. The lever 46 has its two arms disposedL,ten angle less than a. right angle pivoted the junction of its arms neend wall of the frame immediately t n the rib 5 extending therefrom. Thelonger arm ot the lever projects into 31e oath ol the trip 45 andnormally eX- Ynds away from the end wall or'f the frame. he shorter armof' the lever extends be- /een the rib 5 and the-,bowed portion ot .espring latch 47 which is secured upon e rear sine of said rib and hasits lower nd projected through the opening 7 therewhereby it may engagea notch or socket in the rear side ofthe adjacent rack 2T. fr smallroller 49 is carried by the lower portion of the spring latch 47 so asto reduce the frictional wear between the same and the shorter arm ofthe lever 46.

0n the upper side of the slide 36 are one or more wedges or cam blocks50, the positions of which are determined by the keys which operate inthe combination of the lock. The slide also carries a push pin 51, theposition of which is likewise determined by the combination or' the lockand this pin is movable through the slide, being normally held in araised position by a spring 52 coiledaround the pin between the slideand a stop 53 on the pin, the pin being constructed with a. head 54 atits lower end which engages the under side of the slide and therebylimits the upward movement of the pin. A longitudinal slot 55 in theshelf 28 permits the pin to pass through the shelf and act upon thelever or crank arm 24 or" the rock shaft 23 when the parts are properlymanipulated to open the lock. Adjacent the push pin 51 and also adjacentone of the blocks 50 are strikers 56 which are small studs orprojections rising -from the slide and having projections 57 on theirfront edges in position to engage the free ends oi the longer lever arms32 in the manipulation of the device. The key or push rod correspondingto the lirst number otl the combination will work through an open spacebetween the levers 231 as previously suggested, and will engage theinclined face oi? the irst block 50 and, acting thereon, will move theslide one degree to the right. This operation will bring the rst striker56 into engagement with the longer arm of the pivoted lever 32 and willswinf the same out of the path oli the corresponding key so that whensaid key is depressed it will act upon the second wedge-shaped block 50and move the slide second degree to the right. This second movement theslide will cause the second striker to swing the second longer pivotedlever 32 ont of the path of the corresponding key so that when said keyis depressed it will push the pin 51 downwardly and, inasmuch as saidpin will have then assumeda position over the crank 24, itwill act uponsaid crank so as to rock the shaft 223 whereupon the pinion 22 meshingwith the rack 21 will withdraw the bolt 15. The bolt is provided in itsupper side at its righthand end with a notch or recess 56 which will becarried thro eh and beyond the acont end wall oi' the laine when thebolt is withdrawn in the r. ner just stated. 7"1l/*hen the notch 5S isthus brought beyond the main frame, it will be immediately enbv the rearend oit a lever latch 5i) which is pivoted, as `at 6), upon the end walloi the traine and is held toward the bolt 15 bv a spring 6l. The irontend of the lever latch 59 is arranged adjacent the tree end of the crankor lever 35 and the Zero key is provided at its lower end with a toot 62bridging the space between the members 35 and 59 and equipped withrollers 63 bearing upon the ends of said memupon the tree ends of themembers 35 and to the combination is equipped'with a roller 59 and themember 59 swuno u )on its pivot .l .rs afrainst ine force of the springG1 to releaseJ o o the bolt15 which will then be at once proected underthe influence of the s rin@ 18. Il" l :D

i. he downward movement ot the member 35 ,will rock the shaft 25 so thatall the lever or crank arms thereon will be swung below the path oit theproiections 57 on the strik` ers 56 and thershelt 28 will besimultaneously depressed so that the latch 38 will be withdrawn from thenotch 37 in which it is engaged whereupon the slide will be returned toits initial position under the inlincnce of the spring' 20.

The lower endso't' the keys or push rods which do not'forni a part otthe combination for the Ylock are pro lided in their lower` ends withrollers 6st whereby the irictional wear upon the corresponding` levers8l will be minimized. The key which corresponds lirst number ci thecombination is provided at its lower end with a rearwardly projectedfoot upon the extremity ol which is a roller 66 to engage thecorresponding block 5U. The key corresponding to the second or the thirdnumber or l arranged to ride upon the corresponding lever 82 and abovethe said roller said key is also constructed with a toot 68 oroiectingrearwardly and carrying at its extremity a roller 69 disposed at a rightangle .t roller'GT so that the triction'al wear upon the correspmiding1block 5() or the push pin 51 will be minimized.

lt is thought the operation ot' my im-V proved lock will be readilyunderstood. As has been said, the drawings show a lock set for thecombination 2 69 and by referring to Figs. 1 and 2, it will be notedthat when the bolt is projected the key or push rod bearing the number 2will be in alinement with a space between two lever or `Vcrank arms 31and the roller 66 carried by said key or push rod will beV in positionto act upon the inclined ace of a wedge or cam block 50. It will also benoted that the second block 50 is at the left or" thc key or push rodbearing Ythe numeral 6 and that said key or push rod is in alinementwith pivoted leiter 32 while the push rod or key numbered 9 is also inalinement with a pivoted lever and at aconsidcrable distance to thevright ot the ptsh pin 51 and the striker 56 adjacent said pin. lViththe parts in this position, if any key except that numbered 2 bedepressed, the result will be a rocking of the shaft 25 and no change inthe position of the bolt or any of the other working parts .will follow,exceptV that the shelf 28 will be lowered. Upon release of the key, theshelf will rise under the influence of the spring 30. It the keynumbered 2 be depressed, the rock shaft 25 and theshelt28 will not bedisturbed inasmuch as there is no lever or crank Varm in the planeetsaid key but the roller 66 carried by said key will ride down theinclined surface Vof the adjacent block 5() and will thereby push theslide 86 to the right a distance equal to that covered by the saidinclined face. As the slide is pushed to the right, a notch 37 thereinwill be engaged by the latch 38 and, consequently, the slide will beheld against movement to the left when the key is released. If, now, anykey but that numbered 6 be depressed, the rockshaft 25 will be againrocked and the sheft 28 lowered so that the latch 38 will be withdrawnfrom the notch 37 and the slide 36 .will be returned to its initialposition at the left so that it will be necessary to again depress thekey numbered 2. When the key numbered 2 was depressed and the slide 36moved to the right, the lirst striker 56 was brought against the firstpivoted lever 32 and said lever was swung about its pivot so as to becarried beyond the path of the key numbered 6.V It the said key werethen depressed, it would carry the roller 69 thereon into engagementwith the inclined tacerot the second block 50 and the slide 86 would bemoved a second space to the right thereby bringing the push pin 51 intoalinement with'the key numbered 9 and causing the striker 56 adjacentsaid push pin to carry the corresponding lever 32 out of the path etsaid key. If, after the key 6 is operAA ated, any key but Vthat numbered9 be depressed, the shelf 28 will be again lowered and the slide 36released so that it will return to itsinitial position at the left andit will be necessary to start the operation anew. lf, however, the key 9be depressed, the push pin 51 will be forced downwardly through theslide 36 and the slot 55 in the' shelf 28 to bear upon the crank orlever 24; extending from the rock shaft 23. Said shaft 28 willconsequently beV rocked so that the segment 22 thereon meshing with therack 21 will withdraw the bolt 15 and open the lock. ill-.s the bolt iswithdrawn or moved to the right the notch 58 thereon will be carriedunder the end of the latch 59 which will be at once causedrto engage thenotch by the spring 61. The lock will thus be held opened until suchtime as it is manually manipulated to be reset. en it is again desiredto project the bolt and lock the automobile, the zero key is depressedthereby swinging the latch 59 about its pivotand disengagiinig it fromthe notch 58 in the bolt and simultaneously depressing the lever orcrank 35 so' as to rock the shaft 25 and lower the shelf 9.8 to releasethe slide. When the slide is released, the spring 4() expands and forcesthe slide to the left as will be readily understood and, in a likemanner, the bolt is projected by the expansion of the spring i8 when thelatch is withdrawn from the bolt so that the movement of the slide andthe bolt to the left will be automatic and instantaneous.

The pinions or segments 26 are fast to the rock shaft 25 and the racks27 are rigid with the shelf 28. inasmuch as the racks are constantly inmesh with the said pinions the rocking of the shaft 25 will be instantlycommunicated to the racks so that the shelf 28 will be lowered. Then theshelf is lowered the racks 2T are, of course, moved downwardly and thenotch 48 is brought into alinement with the end of the ,latch 47 whichwill thereupon spring into engagement with the notch and hold the shelfdepressed so that it will not interfere with the movement of the slideto the left and will not interrupt said movement prior to the completionof the same. The angle lever 46 being less than a right angle, the longarm thereof will normally project from the adjacent end wall of theframe and is disposed in the path of the vtrip 45 carried by the slide.When the slide moves to the left, therefore, this trip will impingeagainst the free end of the lever 46 and will carry the longer arm ofthe same against the adjacent end wall of the frame thereby swinging thelever about its fulcrum and causing its shorter arm to Abear upon thelatch 47 and withdraw the free end thereof from its engagement with theadjacent rack 27 whereupon the shelf will be raised under the iniluenceof the spring 30. It will be understood, of course, that the tension ofthe several springs will be so adjusted that the resistance to thedownward or inward movement of all the keys will be equal and thestrength of the spring 30 will be such that the rock shaft 25 will bereturned to its initial position positively upon release of the latch 47without presenting excessive resistance to the actuation ofthe severalkeys. It will be understood, of course, that while I have illustrated athree number combination in the accompanying drawings, a combinationconsisting of four numbers or any other plurality of numbers may beemployed. The numbers of the combination may be arranged in any desiredorder but obviously the same number can only be used once in anycombination. ln all combinations, the first key of the combination mustbe arranged to move through a space in which there is no lever or crankprojecting from the rock shaft 25 and the striker corresponding to thesecond number of the combination must be disposed one degree to the leftof the key corresponding to the second number of the combination whilethe second striker must be two degreesr to the left of the keycorresponding to the third number of the combination and so on. In allcombi- 'cns, it will be necessary' to operate the iirrst key of thecombination before any progress toward withdrawing the bolt Acan be madeand the several keys of the combination must be operated in theprescribed order. any variation from the prescribed order of operationwill cause the shaft 25 to rock and lower the shelf 2S so that the slideB6 will at once return to its initial position and it will be necessaryto start the operation anew.

li/.y lock can be placed at any point upon the automobile but willpreferably be housed on the dashboard and the bolt may be arrangfjed soas to bear upon or act upon any part which is essential to thesuccessful operation of the automobile and hold said part in inoperativeposition. llVhile the operation is simple if the combination be known,it is practically impossible for a person not knowing the combination toopen the lock.

Having thus described the invention, what is claimed as new is:

l. A lock comprising a bolt, yieldable means for holding the boltnormally projected, a plurality of keys to be selectively operated, andintermediate devices whereby operation of the keys in a predeterminedsequence will effect withdrawal of the bolt in opposition to saidyieldable means, the bolt remaining at rest until the last key in thesequence is operated and being positively mechanically withdrawn by theaction of said key.

2. A lock comprising a bolt, means for holding the bolt normallyprojected, a plurality of selectively operated keys, means controlled bysome of the keys for withdrawing the bolt, and means controlled by oneof the keys for holding the bolt in its withdrawn position.

3. A lock comprising a bolt, means for holding the bolt normallyprojected, a plurality of keys, means actuated by some of the keys topositively mechanically withdraw the bolt, and means actuated by otherof the keys whereby the bolt-withdrawing means will be renderedinoperative and withdrawal of the bolt will be prevented.

4. A lock comprising a bolt, yieldable means for holding the boltnormally projected, a rock shaft geared to the bolt, a plurality of keysto be selectively operated, intermediate devices operable by some of thekeys in a predetermined sequence to actuate the rock shaft to positivelywithdraw mechanically the bolt, and means actuated by other of the keyswhereby said intermediate devices will be rendered inoperative.

5, A lock comprising a bolt, means for holding -the bolt normallyprojected, a plurality of keys, means actuated by some of vthe keys towithdraw the bolt, means actuated by other of the keys wherebywithdrawal of the bolt will be prevented, and means controlled by onekey for holding the bolt in a withdrawn position.

6. A lock comprising a bolt, means for holding the bolt normallyprojected, keycontrolled means for holding' the bolt'withdrawn, a rockshaft operatively colmected with the bolt, a plurality of keys to beselectively operated, and means controlled by some of the keys foractuating said rock shaft to withdraw the bolt.

7. A lock comprising a bolt, means for holding the bolt normallyprojected, a rock shaft geared to the bolt, a crank projecting from saidrock shaft, a slide disposed above the rock shaft, a push pin mountedupon the slide, and selectively operated means to Aactuate the slidewhereby to bring the push pin into operative relation to said crank andto depress the push pinvwhereby to rock the shaft and withdraw the bolt.

8. In a lock of the character described, the combination of a bolt, aslide, bolt withdrawing means controlled by the slide, a

plurality of keys, means for holding the lactive position shaft.'

means for holding the bolt normally projected, key-controlled means forwithdrawslide-normally in a set position, means actuatedby some of thekeys for moving the slide from the set position, and means actuated byother keys to-return it to set position, the bolt-withdrawing meansbeing operable only when the slide has been fully moved from setposition. Y

9. In a lock of the character set forth, the

combination of a bolt, a slide, bolt-with-` drawing means, means forholding` the slide normall in a set )osition a aluralit ofV keys to beselectively operated, means on the slidewhereby the actuation of some ofthe keys will move the slide from its set position, means for holdingthe slide against return to the set position, and means wherebyVactuation of other keys will release said .holding-means and permit theslide to return to the set position, the bolt-withdrawing means beingoperable only when the slide has been fully moved from set position. Y

10. A lock comprising a bolt, means for holding the bolt normallyprojected, a rockshaft'geared to the bolt, a slide disposed :above .andat lan angle to the rock shaft.

means on the slide to actuate the rock shaft and withdraw the bolt, andselective means for actuating the slide whereby to bring into the meansto actuate the rock 11. A-.lock comprising a casing, a bolt,

ing the bolt, a latch mounted eXteriorly on vvthelcasing to engage thebolt and hold vit inV withdrawn osition and ke -controlled `jections onthe slide to be engaged by semeans mounted eXteriorly on the casing torelease the latch and the [list-mentioned keycontrolled means and permittheV bolt to projected. n

12. A lock comprising a boit, means for holding the bolt `normallyprojected, means for withdrawing the bolt, a slide controlling' thebolt-withdrawing means, a plurality of keys to be selectively operated,and cam pro- `meansfor withdrawing the bcltrincluding a slide, means fornormally holding the slide in inoperative position, means for engaging Ythe slide as vit is moved from inoperative pesition to prevent itsreturn, and selective means for moving the slide to operative positionor releasing said slide-engaging means whereby to permit' return of theslideto inoperative position. Y

15. In a lock of the characterset forth, the combination of a bolt, abolt-withdrawing slide, a rock shaft disposed parallel with the slide, aplurality of keys disposed Vabove the slide andthe rock shaft, armsprojecting from the rock shaft in alinement with the several keys, someof said arms being pivoted for Ymovement in the axial plane of the rockshaft and there being one key in alinement with the space between twoadj acent arms, cams on the slide to be engaged by selected keys, andstrikers on the slide to swing the respective pivoted arms out of Vthepaths of the keys alined respectively `Vor releasing said latch topermit return of the slide, means for holding the latch out of the pathof the slide during return of the latter, and means actuated by theslide for releasing the latch-holding means.V

17. In a lock of the lcind set forth, the

Y combination of va bolt, a bolt-withdrawing slide, means forholding theslide normally` in inoperative position, a latch to hold the slide outof inoperative position, a vertically movable member carrying saidlatch, selectively operable means for moving the slide from inoperativeposition or lowering said vertically movable member to release the latchand permit return of the slide to inoperative position, means fornormally holding said vertically movable member in raised position, asecond latch arranged to engage said vertically movable member, andmeans actuated by the slide as it returns to inoperative position torelease said second latch and permit the vertically movable member torise.

18. ln a lock otthe type set forth, the combination ot a bolt, abolt-withdrawing slide, means for holding the slide normally ininoperative position, a latch to hold the slide out of inoperativeposition, a vertically movable member carrying said latch, selectivemeans for moving the sliee from inoperative position or lowering saidvertically movable member to release the latch and permit return of theslide to inoperative position, means for normally holding saidvertically movable member in raised position, a second latch arranged toengage said vertically. movable member, and an angle lever having onearm in engagement with said second latch and its other arm in the pathof the slide to be actuated by the slide as it returns to inoperativeposition whereby to release said second latch and permit the verticallymovable member to rise.

19. In a lock of the type set forth, the combination of a bolt, abolt-withdrawing slide, means for holding the slide normally ininoperative position, a shelf disposed below the slide, a latch` carriedby the shelf to hold the slide out of inoperative position, verticallydisposed racks on said shelf, a rock shaft, pinions on the roclr shaftmeshing with said racks, and selectively operable means 'for moving theslide to bolt-withdrawing position or rocking said shaft whereby theshelf and latch will be withdrawn from the slide to permit return of theslide to inoperative position.

20. ln a lock oiE the type set forth, the combination of a bolt, abolt-withdrawing slide, intermediate devices controlled by the slide opositively withdraw the bolt, means to; ioldino the slide normally ininoperative position, means for permitting return f of the slide toinoperative position comprising` a roel: sha'it, a plurality of crankseX- tending from said rock shalt, and a latch movable into or out ofengagement with the slide by the action of said rock shaft, cams on theslide, and a plurality of lreys to be selectively operated, some o saidkeys being arranged to engage only the levers carried by the rock shaftand other of the keys being provided with lateral feet at their lowerends whereby they may engage levers on the rock shaft or cams on theslide.

In testimony whereof I aliix my signature.

ABSALDM W. HICKS. [Ls]

